Universal:

Mastermind Pro is a classic remade for the modern age. It features a clean and minimalistic UI, but everything you know and love about the original game remains intact. As always, the object of the game is to guess the secret code by following the hints. Hints will let you know if a dot is of the right color, in the right position, or completely out of place. The game includes three modes, two difficulty settings for each mode, and colorblind support.

Mastermind Pro – Code Breaker (Premium) is available for free for a limited time. It has a 4.5-star rating with a total of 35 ratings.

Kalley’s Machine Plus Cats ($2.99 → Free, 48.0 MB): An interactive story based on a four-year-old girl’s drawing and her plan to save her dad from his daily commute. Kalley’s Machine Plus Cats is the perfect app for the entire family to enjoy.

Kalley’s Machine Plus Cats is about as interactive as interactive storybooks come. There’s just so much to do! You’re able to follow along with the rhyming story as it’s narrated by Kalley and her dad, or you can touch to read. Each page is littered with crazy ways to interact with the machine. You’re able to spin dials, pull levers, hit switches, smash buttons, and watch what happens. Oh, and there’s cats. Lots of cats that are fun to mess with.

Kalley’s Machine Plus Cats is available for free for a limited time. It has a 5-star rating with a total of 163 ratings.

Gather the family and enjoy a collection of five different games all centered around the farm. You’ll find air hockey, lotto, dice, dominoes, and color tiles. Each game includes helpful indicators to assist whoever is playing, and unique characters.

Fun on the Farm – 5 top 2-player board games for kids; play dominos, air hockey, lotto with family and friends is available for free for a limited time. It has a 5-star rating with a total of 5 ratings.

Trouble With Robots ($0.99 → Free, 61.4 MB): Build the perfect deck to take down your foes in this fantastic fusion of action and strategy. Trouble With Robots is obviously best suited for those who are fans of games like Hearthstone, but it’s also a great way to introduce yourself to the collectible card game genre.

There really isn’t any Trouble With Robots. It’s the perfect collectible card game. You get to play through 26 levels that flesh out the crazy storyline and six challenge levels. The only way to make it all of the way to the end is to customize your deck for each level, as you’ll constantly be presented with new challenges. Cards can be played in order to send troops into battle to deal direct damage, buff your allies, and weaken your foes. How you play your cards is entirely up to you.

Trouble With Robots is available for free for a limited time. It has a 5-star rating with a total of 253 ratings.

iPad:

Mystery Math Museum ($2.99 → Free, 380.7 MB): Your child must help a friendly ghost rescue the dragonflies hidden in the Mystery Math Museum. It’s a fun educational game that will help your young child work on their math skills.

To help the ghost get from room to room, your child will need to collect numbers and build equations to solve problems. Along the way they’ll earn talking portraits to add to their gallery. The portraits have different stories to tell through colorful characters. The game includes eight themed museums, support for multiple user accounts, bonus challenges and unique rewards, and customizable skills.

Mystery Math Museum is available for free for a limited time. It has a 4.5-star rating with a total of 55 ratings.

That concludes today’s issue of Apps Gone Free. If you like staying on top of these daily deals, don’t forget to check out our free AppsGoneFree app. It provides all the deals each day, and even an archive of past deals that are still active.

Developers:

If you are a developer who would like to get your app included in our “Apps Gone Free” daily lists, here’s our basic set of rules:

It must have at least a three-star average rating at the time it goes free.

The app must not have been free numerous times (3+) over the last six months.

The free version of your app must not include ads.

To submit an app, simply send a request to [email protected] with the subject “Apps Gone Free.” Please include the name of the app, a link to it in the App Store, when and for how long you intend to offer the app for free, and anything else you would like to share. We will take it from there.